Question

State the speed of each of $\alpha ,\beta$ and $\gamma$-radiations respectively.

• A. ${10}^{8}m{s}^{-1},2\times {10}^{9}m{s}^{-1},3\times {10}^{8}m{s}^{-1}$
• B. ${10}^{7}m{s}^{-1},2\times {10}^{8}m{s}^{-1},3\times {10}^{8}m{s}^{-1}$
• C. ${10}^{6}m{s}^{-1},2\times {10}^{6}m{s}^{-1},3\times {10}^{8}m{s}^{-1}$
• D. ${10}^{7}m{s}^{-1},2\times {10}^{1}0m{s}^{-1},3\times {10}^{9}m{s}^{-1}$

Answer 1

The correct option is B ${10}^{7}m{s}^{-1},2\times {10}^{8}m{s}^{-1},3\times {10}^{8}m{s}^{-1}$

Speed of $\alpha$-radiation is ${10}^{7}m{s}^{-1}$

Speed of $\beta$-radiation is $2\times {10}^{8}m{s}^{-1}$

Speed of $\gamma$-radiation is $3\times {10}^{8}m{s}^{-1}$